Over a two-month period, contributed to DEFRA’s epr-regulator-service and related repositories by delivering eight features and resolving two bugs focused on secure configuration and robust data workflows. Led the migration from appsettings.development.json to User Secrets, unifying secrets management across eight services to enhance security and streamline local development. In the epr-regulator-service repository, implemented new data models and frontend integrations for site address retrieval, while refactoring models and updating service layers to improve registration workflows. Utilized C#, .NET, and AutoMapper to strengthen backend and frontend alignment, expand unit test coverage, and ensure safer, more maintainable development environments for the team.